In another mixing bowl take egg yolks, granulated sugar and mix well with the help of a whisk until sugar dissolves.
Now add low fat dairy milk, vegetable oil,vanilla essence and give it a good mix.
Sieve all purpose flour in the wet ingredients, add baking powder and salt too at this point.
Incorporate all the ingredients together by making sure no lumps are formed.
In another mixing bowl, take egg whites, lime juice, add granulated sugar in batches and whipp until soft peaks.
Gradually transfer the whipped egg white in batches into the cake mixture and mix until nice and creamy.